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Citation: GUO Jun-Huai, SHEN Xing-Can, ZHENG Wen-Jun, CHEN Fang. Preparation of Silver-doped Nano-Titania for Catalytical Photolysis of Organic Pollutants in Sewage[J]. Chinese Journal of Applied Chemistry, ;2003, 20(5): 420-423. shu

Preparation of Silver-doped Nano-Titania for Catalytical Photolysis of Organic Pollutants in Sewage

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a Department of Chemistry, Nankai University, Tianjin 300071;
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b Department of Chemistry and Chemical Engineering, Guangxi Normal University, Guilin;
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c College of Aquatic Product, Hebei Agricultural University, Qinhuangdao

Corresponding author: GUO Jun-Huai,
Received Date: 18 September 2002
Available Online: 20 January 2003
Fund Project: 国家自然科学基金(20261001) (20261001)

A photolysis catalyst consisted of nano-titania was prepared from TiOSO₄ and TiOCl₂.The contents of anatase and rutile in the nano-titania were about 85% and 15%,respectively.Doping of 0.5% (mass fraction) silver on the surface of the nano-titania potentiated the catalytic activity and prolonged the life of the catalyst.Its peculiar flocculation behavior was of great benefit to the separation of the catalyst for the repeated use.The nano-titania (doped or undoped) exibited activity for photocatalytical degradation of reactive black as simulated wastewater,anthraquinone dyes in the actual wastewater,and the organic pollutants in sugar-refinery waste water.The results indicated that the silver-doped catalysts have the advantages of high activity,long life,cheapness and repeated usage.
- silver-doped nano-titania,
- catalytical photolysis,
- organic pollutant
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